Seizures after Levetiracetam in dogs

375 reports to the FDA describe seizures in dogs given Levetiracetam. That is 55% of all reports for this medicine, compared with 4.4% across reports for all dog medicines, so it is reported unusually often with this medicine.

375Reports
95%Marked serious
26%Recovered
22%Died or euthanised
9 daysTypical onset
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How soon it started

Same day
55 20%
1–2 days
57 20%
3–7 days
24 8.5%
1–4 weeks
40 14%
Over a month
106 38%

How the animals did

Recovered
95 25%
Recovered with lasting effects
4 1.1%
Still unwell when reported
137 37%
Died
25 6.7%
Euthanised
58 15%
Not known
56 15%

Problems reported at the same time

Age of the animals

Under 1 year
19
1–3 years
60
4–7 years
123
8–11 years
103
12+ years
67

About this medicine

Type: medicine.

Questions owners ask

Can Levetiracetam cause seizures in dogs?
375 reports link the two, but a report alone does not prove the medicine was the cause: other illnesses, other medicines or coincidence can be involved. Your vet can judge it for your animal.
How soon after a dose was it reported?
In half of the reports with dates, it started within 9 days of the first dose.
What should I do?
Don't give another dose until you've spoken to your vet, and keep the packaging so you can tell them the product and dose. Your vet can also report it to the FDA (or you can, through the manufacturer or FDA form 1932a).

Seizures with similar medicines

All reported side effects of Levetiracetam in dogs · Medicines most reported with seizures